public void Create_TopicNameAlreadyExists_ThrowsTopicNameAlreadyExistsException()
{
// Arrange
string topicName = "topic_name";
Topic topic = new Topic { TopicId = 1, Name = topicName };
// Arrange - mock topicRepository
Mock<ITopicRepository> topicRepositoryMock = new Mock<ITopicRepository>();
topicRepositoryMock.Setup(r => r.GetByName(topicName))
.Returns(topic);
// Arrange - mock unitOfWork
Mock<IUnitOfWork> unitOfWorkMock = new Mock<IUnitOfWork>();
unitOfWorkMock.SetupGet(u => u.TopicRepository)
.Returns(topicRepositoryMock.Object);
// Arrange - create target
ITopicService target = new TopicService(unitOfWorkMock.Object, this._topicValidationMock.Object);
// Act and Assert
Assert.Throws<TopicNameAlreadyExistsException>(() => target.Create(topicName));
topicRepositoryMock.Verify(r => r.GetByName(topicName), Times.Once);
topicRepositoryMock.Verify(r => r.Insert(It.Is<Topic>(t => t.Name == topicName)), Times.Never);
unitOfWorkMock.Verify(r => r.Save(), Times.Never);
}
public Topic Create(string topicName)
{
Guard.NotNullOrEmpty(topicName, "topicName");
if (!this._topicValidation.IsValidName(topicName))
{
throw new InvalidTopicNameFormatException(String.Format("Topic's name '{0}' has invalid format.", topicName));
}
Topic topic = this._unitOfWork.TopicRepository.GetByName(topicName);
if (topic != null)
{
throw new TopicNameAlreadyExistsException(String.Format("Topic with name '{0}' already exists.", topicName));
}
topic = new Topic { Name = topicName };
this._unitOfWork.TopicRepository.Insert(topic);
this._unitOfWork.Save();
return topic;
}
public void GetByName_TopicNameIsValid_ReturnsTopic()
{
// Arrange
Topic testTopic = new Topic { TopicId = 1, Name = "topic_name" };
// Arrange - mock topicRepository
Mock<ITopicRepository> topicRepositoryMock = new Mock<ITopicRepository>();
topicRepositoryMock.Setup(r => r.GetByName(testTopic.Name))
.Returns(testTopic);
// Arrange - mock unitOfWork
Mock<IUnitOfWork> unitOfWorkMock = new Mock<IUnitOfWork>();
unitOfWorkMock.SetupGet(u => u.TopicRepository)
.Returns(topicRepositoryMock.Object);
// Arrange - create target
ITopicService target = new TopicService(unitOfWorkMock.Object, this._topicValidationMock.Object);
// Act
Topic topic = target.GetByName(testTopic.Name);
// Assert
Assert.AreSame(testTopic, topic);
}
public void Edit_AllCredentialsAreValid_EditsTopic()
{
// Arrange
Topic topic = new Topic { TopicId = 1 };
string newTopicName = "new_topic_name";
// Arrange - mock topicRepository
Mock<ITopicRepository> topicRepositoryMock = new Mock<ITopicRepository>();
topicRepositoryMock.Setup(r => r.GetById(topic.TopicId))
.Returns(topic);
topicRepositoryMock.Setup(r => r.GetByName(newTopicName))
.Returns((Topic)null);
Topic editedTopic = null;
topicRepositoryMock.Setup(r => r.Update(It.Is<Topic>(t => t.TopicId == topic.TopicId)))
.Callback((Topic t) => editedTopic = t);
// Arrange - mock unitOfWork
Mock<IUnitOfWork> unitOfWorkMock = new Mock<IUnitOfWork>();
unitOfWorkMock.SetupGet(u => u.TopicRepository)
.Returns(topicRepositoryMock.Object);
// Arrange - create target
ITopicService target = new TopicService(unitOfWorkMock.Object, this._topicValidationMock.Object);
// Act
target.Edit(topic.TopicId, newTopicName);
// Assert
Assert.IsNotNull(editedTopic);
Assert.AreEqual(newTopicName, editedTopic.Name);
topicRepositoryMock.Verify(r => r.GetById(topic.TopicId), Times.Once);
topicRepositoryMock.Verify(r => r.GetByName(newTopicName), Times.Once);
topicRepositoryMock.Verify(r => r.Update(It.Is<Topic>(t => t.TopicId == topic.TopicId)), Times.Once);
unitOfWorkMock.Verify(r => r.Save(), Times.Once);
}
public void Create_TagIdsArrayIsEmpty_DoNotGetTagsFromRepository()
{
// Arrange
User user = new User { UserId = 1 };
string articleTitle = "article_title";
string articleText = "article_text";
string validatedArticleTitle = "validated_article_title";
string validatedArticleText = "validated_article_text";
Topic topic = new Topic { TopicId = 2 };
int[] tagIds = { };
// Arrange - mock userRepository
Mock<IUserRepository> userRepositoryMock = new Mock<IUserRepository>();
userRepositoryMock.Setup(r => r.GetById(user.UserId))
.Returns(user);
// Arrange - mock topicRepository
Mock<ITopicRepository> topicRepositoryMock = new Mock<ITopicRepository>();
topicRepositoryMock.Setup(r => r.GetById(topic.TopicId))
.Returns(topic);
// Arrange - mock tagRepository
Mock<ITagRepository> tagRepositoryMock = new Mock<ITagRepository>();
// Arrange - mock articleRepository
Mock<IArticleRepository> articleRepositoryMock = new Mock<IArticleRepository>();
// Arrange - mock unitOfWork
Mock<IUnitOfWork> unitOfWorkMock = new Mock<IUnitOfWork>();
unitOfWorkMock.SetupGet(u => u.UserRepository)
.Returns(userRepositoryMock.Object);
unitOfWorkMock.SetupGet(u => u.TopicRepository)
.Returns(topicRepositoryMock.Object);
unitOfWorkMock.SetupGet(u => u.TagRepository)
.Returns(tagRepositoryMock.Object);
unitOfWorkMock.SetupGet(u => u.ArticleRepository)
.Returns(articleRepositoryMock.Object);
// Arrange - mock articleValidation
this._articleValidationMock.Setup(v => v.ValidateTitle(articleTitle))
.Returns(validatedArticleTitle);
this._articleValidationMock.Setup(v => v.ValidateArticleText(articleText))
.Returns(validatedArticleText);
// Arrange - create target
IArticleService target = new ArticleService(unitOfWorkMock.Object, this._articleValidationMock.Object);
// Act
Article article = target.Create(user.UserId, articleTitle, articleText, topic.TopicId, tagIds);
// Assert
Assert.IsNotNull(article);
Assert.AreEqual(user.UserId, article.UserId);
Assert.AreEqual(topic.TopicId, article.TopicId);
Assert.AreEqual(validatedArticleTitle, article.Title);
Assert.AreEqual(validatedArticleText, article.Text);
Assert.IsFalse(article.Tags.Any());
Assert.IsTrue(new DateTime() != article.PublicationDate);
userRepositoryMock.Verify(r => r.GetById(user.UserId), Times.Once);
topicRepositoryMock.Verify(r => r.GetById(topic.TopicId), Times.Once);
tagRepositoryMock.Verify(
r =>
r.Get(It.IsAny<Expression<Func<Tag, bool>>>(), It.IsAny<Func<IQueryable<Tag>, IOrderedQueryable<Tag>>>(),
It.IsAny<Expression<Func<Tag, object>>[]>()), Times.Never);
articleRepositoryMock.Verify(
r =>
r.Insert(
It.Is<Article>(a => a.UserId == user.UserId && a.Title == validatedArticleTitle && a.Text == validatedArticleText)),
Times.Once);
unitOfWorkMock.Verify(u => u.Save(), Times.Once);
this._articleValidationMock.Verify(v => v.ValidateTitle(articleTitle), Times.Once);
this._articleValidationMock.Verify(v => v.ValidateArticleText(articleText), Times.Once);
}
public void Create_AllCredentialsAreValid_CreatesArticle()
{
// Arrange
User user = new User { UserId = 1 };
string articleTitle = "article_title";
string articleText = "article_text";
string validatedArticleTitle = "validated_article_title";
string validatedArticleText = "validated_article_text";
Topic topic = new Topic { TopicId = 2 };
int[] tagIds = { 1, 2, 3, 4 };
IList<Tag> tags = new List<Tag>();
foreach (int tagId in tagIds)
{
tags.Add(new Tag { TagId = tagId });
}
// Arrange - mock userRepository
Mock<IUserRepository> userRepositoryMock = new Mock<IUserRepository>();
userRepositoryMock.Setup(r => r.GetById(user.UserId))
.Returns(user);
// Arrange - mock topicRepository
Mock<ITopicRepository> topicRepositoryMock = new Mock<ITopicRepository>();
topicRepositoryMock.Setup(r => r.GetById(topic.TopicId))
.Returns(topic);
// Arrange - mock tagRepository
Mock<ITagRepository> tagRepositoryMock = new Mock<ITagRepository>();
tagRepositoryMock.Setup(
r => r.Get(It.IsAny<Expression<Func<Tag, bool>>>(), null, It.Is<Expression<Func<Tag, object>>[]>(e => !e.Any())))
.Returns(
(Expression<Func<Tag, bool>> filter, Func<IQueryable<Tag>, IOrderedQueryable<Tag>> orderBy,
Expression<Func<Tag, object>>[] selector) => CollectionHelper.FilterCollection(tags, filter, orderBy));
// Arrange - mock articleRepository
Mock<IArticleRepository> articleRepositoryMock = new Mock<IArticleRepository>();
// Arrange - mock unitOfWork
Mock<IUnitOfWork> unitOfWorkMock = new Mock<IUnitOfWork>();
unitOfWorkMock.SetupGet(u => u.UserRepository)
.Returns(userRepositoryMock.Object);
unitOfWorkMock.SetupGet(u => u.TopicRepository)
.Returns(topicRepositoryMock.Object);
unitOfWorkMock.SetupGet(u => u.TagRepository)
.Returns(tagRepositoryMock.Object);
unitOfWorkMock.SetupGet(u => u.ArticleRepository)
.Returns(articleRepositoryMock.Object);
// Arrange - mock articleValidation
this._articleValidationMock.Setup(v => v.ValidateTitle(articleTitle))
.Returns(validatedArticleTitle);
this._articleValidationMock.Setup(v => v.ValidateArticleText(articleText))
.Returns(validatedArticleText);
// Arrange - create target
IArticleService target = new ArticleService(unitOfWorkMock.Object, this._articleValidationMock.Object);
// Act
Article article = target.Create(user.UserId, articleTitle, articleText, topic.TopicId, tagIds);
// Assert
Assert.IsNotNull(article);
Assert.AreEqual(user.UserId, article.UserId);
Assert.AreEqual(topic.TopicId, article.TopicId);
Assert.AreEqual(validatedArticleTitle, article.Title);
Assert.AreEqual(validatedArticleText, article.Text);
Assert.AreEqual(tags, article.Tags);
Assert.IsTrue(new DateTime() != article.PublicationDate);
userRepositoryMock.Verify(r => r.GetById(user.UserId), Times.Once);
topicRepositoryMock.Verify(r => r.GetById(topic.TopicId), Times.Once);
tagRepositoryMock.Verify(
r => r.Get(It.IsAny<Expression<Func<Tag, bool>>>(), null, It.Is<Expression<Func<Tag, object>>[]>(e => !e.Any())),
Times.Once);
articleRepositoryMock.Verify(
r =>
r.Insert(
It.Is<Article>(a => a.UserId == user.UserId && a.Title == validatedArticleTitle && a.Text == validatedArticleText)),
Times.Once);
unitOfWorkMock.Verify(u => u.Save(), Times.Once);
this._articleValidationMock.Verify(v => v.ValidateTitle(articleTitle), Times.Once);
this._articleValidationMock.Verify(v => v.ValidateArticleText(articleText), Times.Once);
}